Malware Analysis Report

2025-01-02 09:43

Sample ID 240904-qectzasamg
Target 5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb
SHA256 5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb
Tags
gcleaner discovery loader
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb

Threat Level: Known bad

The file 5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb was found to be: Known bad.

Malicious Activity Summary

gcleaner discovery loader

GCleaner

Downloads MZ/PE file

Checks computer location settings

Enumerates physical storage devices

Unsigned PE

Program crash

System Location Discovery: System Language Discovery

Kills process with taskkill

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-04 13:10

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-04 13:10

Reported

2024-09-04 13:12

Platform

win10v2004-20240802-en

Max time kernel

95s

Max time network

136s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe"

Signatures

GCleaner

loader gcleaner

Downloads MZ/PE file

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\taskkill.exe N/A

Kills process with taskkill

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\taskkill.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe

"C:\Users\Admin\AppData\Local\Temp\5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe" & exit

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2488 -ip 2488

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe" /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2488 -s 1596

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
RU 80.66.75.114:80 80.66.75.114 tcp
US 8.8.8.8:53 114.75.66.80.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 121.170.16.2.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/2488-1-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2488-2-0x0000000000600000-0x000000000063B000-memory.dmp

memory/2488-3-0x0000000000400000-0x000000000043F000-memory.dmp

memory/2488-8-0x0000000010000000-0x000000001001C000-memory.dmp

memory/2488-13-0x0000000000680000-0x0000000000780000-memory.dmp

memory/2488-15-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2488-16-0x0000000000600000-0x000000000063B000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\KDOTUZKP\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/2488-18-0x0000000000400000-0x000000000043F000-memory.dmp

memory/2488-27-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2488-36-0x0000000000400000-0x000000000043F000-memory.dmp

memory/2488-35-0x0000000000400000-0x0000000000452000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-04 13:10

Reported

2024-09-04 13:12

Platform

win11-20240802-en

Max time kernel

91s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe"

Signatures

GCleaner

loader gcleaner

Downloads MZ/PE file

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\taskkill.exe N/A

Kills process with taskkill

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\taskkill.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\taskkill.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe

"C:\Users\Admin\AppData\Local\Temp\5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "5b80a16b10ae88aa9f46e032f1d68aa7ddd8cd45a3b787e7002c7797b063c9eb.exe" /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2252 -ip 2252

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2252 -s 1572

Network

Country Destination Domain Proto
RU 80.66.75.114:80 80.66.75.114 tcp
US 8.8.8.8:53 114.75.66.80.in-addr.arpa udp

Files

memory/2252-1-0x0000000000730000-0x0000000000830000-memory.dmp

memory/2252-2-0x00000000006D0000-0x000000000070B000-memory.dmp

memory/2252-3-0x0000000000400000-0x000000000043F000-memory.dmp

memory/2252-8-0x0000000010000000-0x000000001001C000-memory.dmp

memory/2252-13-0x0000000000730000-0x0000000000830000-memory.dmp

memory/2252-15-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2252-16-0x00000000006D0000-0x000000000070B000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\OZ1VS64O\download[1].htm

MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

memory/2252-18-0x0000000000400000-0x000000000043F000-memory.dmp

memory/2252-29-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2252-35-0x0000000000400000-0x0000000000452000-memory.dmp

memory/2252-36-0x0000000000400000-0x000000000043F000-memory.dmp